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javascript - Jquery validation password strength uppercase and lowercase - Stack Overflow

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$.validator.addMethod("validpassword", function(value, element) {
    return this.optional(element) ||
        /^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[\d])(?=.*[\W]).*$/i.test(value);
}, "The password must contain a minimum of one lower case character," +
           " one upper case character, one digit and one special character..");

The above regex does not differentiate between uppercase and lowercase. What's wrong?

$.validator.addMethod("validpassword", function(value, element) {
    return this.optional(element) ||
        /^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[\d])(?=.*[\W]).*$/i.test(value);
}, "The password must contain a minimum of one lower case character," +
           " one upper case character, one digit and one special character..");

The above regex does not differentiate between uppercase and lowercase. What's wrong?

Share Improve this question edited Mar 22, 2012 at 21:29 Rob W 349k87 gold badges807 silver badges682 bronze badges asked Mar 22, 2012 at 20:46 Dev JadejaDev Jadeja 1302 silver badges10 bronze badges
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1 Answer 1

Reset to default 9

Remove the i flag. It makes the RegEx case-insensitive. Also, extend [\W] to [\W_].

/^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[\d])(?=.*[\W]).*$/i.test(value);
//                                           Remove this   ^

// Ok:
/^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[\d])(?=.*[\W_]).*$/.test(value);
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